Latest M&A Deals
Arcadis – Amsterdam, The Netherlands acquired WSP Infrastructure Engineering GmbH – Frankfurt, Germany
Trinity Consultants – Dallas, TX acquired Jaffe Holden – Norwalk, CT
Schmidt Hammer Lassen – Aarhus, Denmark acquired Rørbæk and Møller Architects – Copenhagen, Denmark
Caisse de dépôt et placement du Québec (CDPQ) – Montreal, Quebec acquired Norda Stelo – Québec, Québec
LRQA – London, England acquired EcoEngineers – Des Moines, IA
CPH Consulting, LLC – Sanford, FL acquired Mittauer & Associates, Inc. – Orange Park, FL
Celnor – London, England acquired John Turner Consulting – Portsmouth, NH
NV5 Global, Inc. – Hollywood, FL acquired Herman Cx, LLC – Cottonwood, AZ
H.I.G. Capital – Miami, FL acquired Protos S.p.A. – Rome, Italy
Egis Group – Guyancourt, Saint-Quentin-en-Yvelines acquired Engeny – Brisbane, Queensland
Gate & Bar Ltd – Fulford, England acquired Architecturally Collaborated Design Ltd – Rufforth, England
Accenture – Dublin, Ireland acquired Soben – Glasgow, Scotland
Pennoni Associates – Philadelphia, PA acquired Midlantic Engineering – Pittston Township, PA
SubTerra Engineering Corporation – Calgary, Alberta acquired Cavern Solutions Inc. – Houston, TX
STGM Architecture – Québec, Québec acquired Minicucci Architecte – Montréal, Québec
VLK Architects – Fort Worth, TX acquired TransCend4 – Deston, TX
Dillon Consulting Limited – Toronto, Ontario acquired FBM Architecture Ltd. – Halifax, Nova Scotia
Cumming Group – New York, NY acquired RWBID Construction Management, LLC – Hermosa Beach, CA
Willdan Group, Inc. – Anaheim, CA acquired Alternative Power Generation, Inc. – Elmhurst, IL
Rimkus Consulting Group, Inc. – Houston, TX acquired Human Factors Consulting Services, Inc. – Chatsworth, CA
Arium AE, LLC – Columbia, MD acquired Dymond – Baltimore, MD
ID Studio 4, LLC – Irving, TX acquired Sperides Reiners Architects – Eden Prairie, MN
Royal HaskoningDHV – Amersfoort, Netherlands acquired Arch Henderson LLP – Aberdeen, Scotland
Environmental Science Associates (ESA) – San Francisco, CA acquired 48 North Solutions – Issaquah, WA
HLB Lighting Design – New York, NY acquired C.S. Design – Montreal, Canada
Ulteig – Fargo, ND acquired Paradigm Environmental – San Diego, CA
Trinity Consultants – Dallas, TX acquired Safety Partners, Inc. – Bedford, MA
Drees & Sommer UK Limited – London, England acquired RSP Consulting Engineers LLP – Edinburgh, Scotland
Schmidt Hammer Lassen Architects – Copenhagen, Denmark acquired Rørbæk og Møller Arkitekter – Copenhagen, Denmark
LJA Engineering, Inc. – Houston, TX acquired Peters and Yaffee, Inc. – Jacksonville, FL
Greenman-Pedersen, Inc. (GPI)  – Babylon, NY acquired DesignTech, Inc. – Kensington, MD
Oakville Enterprises Corporation (OEC) – Oakville, Ontario acquired Primary Engineering and Construction Corporation – Calgary, Alberta
Signal Hill Equity Partners Inc. – Toronto, Ontario acquired ZMM Architects and Engineers – Charleston, WV
Oak Point Associates – Biddeford, ME acquired id3A – Glastonbury, CT
ARX – Grono, Switzerland acquired Carlos Fernández Casado S.L. – Madrid, Spain
Phenna Group Holdings Limited – Nottingham, England acquired Calibre Environmental Ltd – Chessington, England
RSGx – Sydney, New South Wales acquired BEC Engineering Pty Ltd – Perth, Western Australia
GCW Engineering, Inc. – Las Vegas, NV acquired Headway Transportation – Reno, NV
AYESA – Sevilla, Spain acquired ADP Consulting – Melbourne, Victoria
Kent plc – Dubai, UAE acquired Sudlows Consulting – Dubai, UAE
CBCL Limited – Halifax, Nova Scotia acquired RJ Bartlett Engineering – Fredericton, New Brunswick
Langan Engineering & Environmental Services – Parsippany, NJ acquired ATR Engineering – Houston, TX
Egis Group – Guyancourt, Saint-Quentin-en-Yvelines acquired Peracon – Melbourne, Victoria
Resource Innovations – Half Moon Bay, CA acquired Richard Heath & Associates, Inc. – Fresno, CA
I.CO.P. S.p.A. Società Benefit – Basiliano, Italy acquired Atlantic GeoConstruction Holdings, Inc. – Orlando, FL
Stratus – Coraopolis, PA acquired Engineering Strategies, Inc. – Marietta, GA
HDR – Omaha, NE acquired Live Oak Consultants – North Charleston, SC
Olsson – Lincoln, NE acquired Darr & Collins, LLC – Edmond, OK
2025

M&A Transactions

Buyers by State
Sellers by State
US VS. International Buyers
Total US Acquisitions
102
US Acquisitions of Int’l Firms
5
Total Int’l Acquisitions
63
Int’l Acquisitions of US Firms
14
US VS. International Sellers
Total US Acquisitions
111
US Acquisitions of Int’l Firms
14
Total Int’l Acquisitions
54
Int’l Acquisitions of US Firms
5
States By Total Activity
21+ Transactions
1-10 Transactions
11-20 Transactions
0 Transactions
Buyers
Alaska – 0
No Transactions
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Buyers
Alabama – 1
Goodwyn Mills Cawood
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Buyers
Arkansas – 1
Crafton Tull
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Buyers
Arizona – 0
No Transactions
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Buyers
California – 6
Willdan Group, Inc.
Environmental Science Associates (ESA)
Resource Innovations
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Buyers
Colorado – 3
Aventia
Lerch Bates Inc.
Spheros Environmental
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Buyers
Connecticut – 0
No Transactions
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Buyers
Delaware – 0
No Transactions
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Buyers
Florida – 8
CPH Consulting, LLC
NV5 Global, Inc.
H.I.G. Capital
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Buyers
Georgia – 0
No Transactions
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Buyers
Hawaii – 0
No Transactions
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Buyers
Iowa – 1
INVISION
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Buyers
Idaho – 1
JUB Engineers
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Buyers
Illinois – 6
H.W. Lochner, Inc.
IMEG Corp.
IMEG Corp.
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Buyers
Indiana – 1
Resolution Group, Inc.
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Buyers
Kansas – 1
Schaefer Architecture
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Buyers
Kentucky – 0
No Transactions
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Buyers
Louisiana – 1
Hunt, Guillot & Associates (HGA)
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Buyers
Massachusetts – 5
Infrasense, Inc.
DGT Associates
TEC, Inc.
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Buyers
Maryland – 1
Arium AE, LLC
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Buyers
Maine – 1
Oak Point Associates
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Buyers
Michigan – 6
Pure Architects
Atwell, LLC
Catalyst Partners
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Buyers
Minnesota – 3
Larson Engineering
Bolton & Menk, Inc.
Bolton & Menk, Inc.
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Buyers
Missouri – 0
No Transactions
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Buyers
Mississippi – 0
No Transactions
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Buyers
Montana – 0
No Transactions
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Buyers
North Carolina – 3
ArborMetrics Solutions, LLC
McAdams
Alpine Intel, LLC
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Buyers
North Dakota – 3
Ulteig
Houston Engineering, Inc.
Interstate Engineering
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Buyers
Nebraska – 3
HDR
Olsson
DLR Group
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Buyers
New Hampshire – 0
No Transactions
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Buyers
New Jersey – 3
Langan Engineering & Environmental Services
Design Resources Group Architects, AIA, Inc.
Michael Graves Architecture & Design
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Buyers
New Mexico – 0
No Transactions
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Buyers
Nevada – 1
GCW Engineering, Inc.
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Buyers
New York – 13
Cumming Group
HLB Lighting Design
Greenman
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Buyers
Ohio – 1
The Mannik & Smith Group
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Buyers
Oklahoma – 0
No Transactions
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Buyers
Oregon – 1
David Evans and Associates, Inc.
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Buyers
Pennsylvania – 6
Pennoni Associates
Stratus
Stratus
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Buyers
Rhode Island – 0
No Transactions
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Buyers
South Carolina – 0
No Transactions
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Buyers
South Dakota – 0
No Transactions
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Buyers
Tennessee – 2
MJM Architects
EnSafe Inc.
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Buyers
Texas – 14
Trinity Consultants
VLK Architects
Rimkus Consulting Group, Inc.
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Buyers
Utah – 0
No Transactions
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Buyers
Virginia – 2
Bowman Consulting Group Ltd
Parsons Corporation
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Buyers
Vermont – 0
No Transactions
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Buyers
Washington – 1
Coffman Engineers
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Buyers
Wisconsin – 0
No Transactions
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Buyers
West Virginia – 1
McKinley Architecture+Engineering
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Buyers
Wyoming – 0
No Transactions
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Buyers
Washington DC – 2
Godspeed Capital
MGAC
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AlaskaBuyers
No Transactions
Alabama (1)Buyers
Goodwyn Mills Cawood
Arkansas (1)Buyers
Crafton Tull
ArizonaBuyers
No Transactions
California (6)Buyers
Willdan Group, Inc.
Environmental Science Associates (ESA)
Resource Innovations
Provost & Pritchard Consulting Group
Willdan Group, Inc.
Levine Leichtman Capital Partners
Colorado (3)Buyers
Aventia
Lerch Bates Inc.
Spheros Environmental
ConnecticutBuyers
No Transactions
DelawareBuyers
No Transactions
Florida (8)Buyers
CPH Consulting, LLC
NV5 Global, Inc.
H.I.G. Capital
UES (Universal Engineering Sciences, Inc.)
Verdantas
NV5 Global, Inc.
Palm Beach Capital
Verdantas
GeorgiaBuyers
No Transactions
HawaiiBuyers
No Transactions
Iowa (1)Buyers
INVISION
Idaho (1)Buyers
JUB Engineers
Illinois (6)Buyers
H.W. Lochner, Inc.
IMEG Corp.
IMEG Corp.
Benesch
ENTRUST Solutions Group (formerly EN Engineering)
Greenprint Partners
Indiana (1)Buyers
Resolution Group, Inc.
Kansas (1)Buyers
Schaefer Architecture
KentuckyBuyers
No Transactions
Louisiana (1)Buyers
Hunt, Guillot & Associates (HGA)
Massachusetts (5)Buyers
Infrasense, Inc.
DGT Associates
TEC, Inc.
Berkshire Partners LLC
VHB
Maryland (1)Buyers
Arium AE, LLC
Maine (1)Buyers
Oak Point Associates
Michigan (6)Buyers
Pure Architects
Atwell, LLC
Catalyst Partners
Atwell, LLC
Fishbeck, Inc.
TowerPinkster
Minnesota (3)Buyers
Larson Engineering
Bolton & Menk, Inc.
Bolton & Menk, Inc.
MissouriBuyers
No Transactions
MississippiBuyers
No Transactions
MontanaBuyers
No Transactions
North Carolina (3)Buyers
ArborMetrics Solutions, LLC
McAdams
Alpine Intel, LLC
North Dakota (3)Buyers
Ulteig
Houston Engineering, Inc.
Interstate Engineering
Nebraska (3)Buyers
HDR
Olsson
DLR Group
New HampshireBuyers
No Transactions
New Jersey (3)Buyers
Langan Engineering & Environmental Services
Design Resources Group Architects, AIA, Inc.
Michael Graves Architecture & Design
New MexicoBuyers
No Transactions
Nevada (1)Buyers
GCW Engineering, Inc.
New York (13)Buyers
Cumming Group
HLB Lighting Design
Greenman
LaBella Associates
Scheid Architectural, PLLC
CPL
Cumming Group
J.S. Held LLC
CPL
Mancini Duffy
True Environmental
Impact Environmental
AKRF, Inc.
Ohio (1)Buyers
The Mannik & Smith Group
OklahomaBuyers
No Transactions
Oregon (1)Buyers
David Evans and Associates, Inc.
Pennsylvania (6)Buyers
Pennoni Associates
Stratus
Stratus
Incline Equity Partners
Mainstay Engineering Group
Michael Baker International
Rhode IslandBuyers
No Transactions
South CarolinaBuyers
No Transactions
South DakotaBuyers
No Transactions
Tennessee (2)Buyers
MJM Architects
EnSafe Inc.
Texas (14)Buyers
Trinity Consultants
VLK Architects
Rimkus Consulting Group, Inc.
ID Studio 4, LLC
Trinity Consultants
LJA Engineering, Inc.
CONSOR Engineers, LLC
Align Capital Partners
PBK Architects
Consor
SAM, LLC (Surveying And Mapping, LLC)
Pape
Baker Engineering and Risk Consultants
SAM, LLC (Surveying And Mapping, LLC)
UtahBuyers
No Transactions
Virginia (2)Buyers
Bowman Consulting Group Ltd
Parsons Corporation
VermontBuyers
No Transactions
Washington (1)Buyers
Coffman Engineers
WisconsinBuyers
No Transactions
West Virginia (1)Buyers
McKinley Architecture+Engineering
WyomingBuyers
No Transactions
Washington DC (2)Buyers
Godspeed Capital
MGAC
Sellers
Alaska – 0
No Transactions
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Sellers
Alabama – 2
InSite Engineering
South Coast Engineers
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Sellers
Arkansas – 1
Laneshift
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Sellers
Arizona – 2
Herman Cx, LLC
Terrascape Consulting
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Sellers
California – 12
Human Factors Consulting Services, Inc.
RWBID Construction Management, LLC
Paradigm Environmental
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Sellers
Colorado – 3
Reliable Power Consultants
Ensero Solutions
Anderson Consulting Engineers
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Sellers
Connecticut – 3
Jaffe Holden
id3A
id3A
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Sellers
Delaware – 0
No Transactions
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Sellers
Florida – 7
Mittauer & Associates, Inc.
Peters and Yaffee, Inc.
Atlantic GeoConstruction Holdings, Inc.
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Sellers
Georgia – 6
Engineering Strategies, Inc.
SEI Engineering, Inc.
NewFields (Environmental Divison)
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Sellers
Hawaii – 0
No Transactions
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Sellers
Iowa – 1
EcoEngineers
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Sellers
Idaho – 1
EcoAnalysts, Inc.
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Sellers
Illinois – 3
Alternative Power Generation, Inc.
Mostardi Platt
Omni Workshop
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Sellers
Indiana – 3
TRS Group, Inc.
Little River Consultants, LLC
Align Civil Engineering Consultants
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Sellers
Kansas – 1
Krehbiel Architecture
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Sellers
Kentucky – 0
No Transactions
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Sellers
Louisiana – 0
No Transactions
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Sellers
Massachusetts – 6
Safety Partners, Inc.
Green International Affiliates
Warner Larson Landscape Architects
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Sellers
Maryland – 3
Dymond
Dymond
Building Envelope Consultants and Scientists, LLC
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Sellers
Maine – 2
St.Germain
Fair Dermody Consulting Engineers
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Sellers
Michigan – 3
ROI Design
RTI Laboratories
Comprehensive Engineering
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Sellers
Minnesota – 5
Sperides Reiners Architects
Fagen Engineering
Hansen Thorp Pellinen Olson, Inc.
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Sellers
Missouri – 1
Marino Engineering Associates
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Sellers
Mississippi – 0
No Transactions
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Sellers
Montana – 0
No Transactions
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Sellers
North Carolina – 3
BREC
ECI Environmental Consultants, Inc.
TPD Carolinas
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Sellers
North Dakota – 1
49th Latitude Land Survey, LLC
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Sellers
Nebraska – 1
Energy Studio, Inc.
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Sellers
New Hampshire – 2
John Turner Consulting
Doucet Survey
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Sellers
New Jersey – 2
Haines Fire and Risk Consulting
PT Consultants, Inc.
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Sellers
New Mexico – 0
No Transactions
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Sellers
Nevada – 1
Headway Transportation
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Sellers
New York – 3
Headway Transportation
Schneider Architectural Services, PC
Philip Habib & Associates engineers and Planners
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Sellers
Ohio – 4
True Inspection Services
SSI Consulting, LLC
Clark & Post Architects Inc.
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Sellers
Oklahoma – 1
Darr & Collins, LLC
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Sellers
Oregon – 5
AKS Engineering & Forestry
David Evans & Associates, Inc.
Elcon Associates, Inc.
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Sellers
Pennsylvania – 4
Midlantic Engineering
VITETTA
MCF Architecture
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Sellers
Rhode Island – 0
No Transactions
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Sellers
South Carolina – 4
Live Oak Consultants
Craig Gaulden Davis (CGD)
Compass 5 Architects
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Sellers
South Dakota – 0
No Transactions
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Sellers
Tennessee – 2
Entech Engineering Inc.
MBI Companies, Inc.
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Sellers
Texas – 7
Cavern Solutions Inc.
TransCend4
ATR Engineering
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Sellers
Utah – 1
Advanced Bridge Inspections, LLC
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Sellers
Virginia – 1
Commonwealth Architects
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Sellers
Vermont – 0
No Transactions
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Sellers
Washington – 2
48 North Solutions
MBF Audiovisual & Acoustical Consulting, LLC
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Sellers
Wisconsin – 0
No Transactions
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Sellers
West Virginia – 1
ZMM Architects and Engineers
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Sellers
Wyoming – 0
No Transactions
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Sellers
Washington DC – 0
No Transactions
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AlaskaSellers
No Transactions
Alabama (2)Sellers
InSite Engineering
South Coast Engineers
Arkansas (1)Sellers
Laneshift
Arizona (2)Sellers
Herman Cx, LLC
Terrascape Consulting
California (12)Sellers
Human Factors Consulting Services, Inc.
RWBID Construction Management, LLC
Paradigm Environmental
Richard Heath & Associates, Inc.
Park Engineering
Ruettgers & Schuler Civil Engineers
Kollin Altomare Architects, Inc.
Stonemark Construction Management
Group Delta Consultants, Inc.
MHM, Inc.
MHM, Inc.
Akela Engineering & Consulting
Colorado (3)Sellers
Reliable Power Consultants
Ensero Solutions
Anderson Consulting Engineers
Connecticut (3)Sellers
Jaffe Holden
id3A
id3A
DelawareSellers
No Transactions
Florida (7)Sellers
Mittauer & Associates, Inc.
Peters and Yaffee, Inc.
Atlantic GeoConstruction Holdings, Inc.
Alpha Inspections Inc
KJM Land Surveying LLC
Design Styles Architecture, Inc.
RDB Design Associates
Georgia (6)Sellers
Engineering Strategies, Inc.
SEI Engineering, Inc.
NewFields (Environmental Divison)
NewFields (Environmental Divison)
Resolute Environmental & Water Resources Consulting, LLC
S. Nelson & Associates, Inc.
HawaiiSellers
No Transactions
Iowa (1)Sellers
EcoEngineers
Idaho (1)Sellers
EcoAnalysts, Inc.
Illinois (3)Sellers
Alternative Power Generation, Inc.
Mostardi Platt
Omni Workshop
Indiana (3)Sellers
TRS Group, Inc.
Little River Consultants, LLC
Align Civil Engineering Consultants
Kansas (1)Sellers
Krehbiel Architecture
KentuckySellers
No Transactions
LouisianaSellers
No Transactions
Massachusetts (6)Sellers
Safety Partners, Inc.
Green International Affiliates
Warner Larson Landscape Architects
Tsoi Kobus Design
R.E. Cameron & Associates, Inc.
Joseph Coan Landscape Architecture
Maryland (3)Sellers
Dymond
Dymond
Building Envelope Consultants and Scientists, LLC
Maine (2)Sellers
St.Germain
Fair Dermody Consulting Engineers
Michigan (3)Sellers
ROI Design
RTI Laboratories
Comprehensive Engineering
Minnesota (5)Sellers
Sperides Reiners Architects
Fagen Engineering
Hansen Thorp Pellinen Olson, Inc.
Benchmark Engineering, Inc.
FOCUS Engineering, Inc.
Missouri (1)Sellers
Marino Engineering Associates
MississippiSellers
No Transactions
MontanaSellers
No Transactions
North Carolina (3)Sellers
BREC
ECI Environmental Consultants, Inc.
TPD Carolinas
North Dakota (1)Sellers
49th Latitude Land Survey, LLC
Nebraska (1)Sellers
Energy Studio, Inc.
New Hampshire (2)Sellers
John Turner Consulting
Doucet Survey
New Jersey (2)Sellers
Haines Fire and Risk Consulting
PT Consultants, Inc.
New MexicoSellers
No Transactions
Nevada (1)Sellers
Headway Transportation
New York (3)Sellers
Headway Transportation
Schneider Architectural Services, PC
Philip Habib & Associates engineers and Planners
Ohio (4)Sellers
True Inspection Services
SSI Consulting, LLC
Clark & Post Architects Inc.
Aster Global Environmental Solutions, Inc.
Oklahoma (1)Sellers
Darr & Collins, LLC
Oregon (5)Sellers
AKS Engineering & Forestry
David Evans & Associates, Inc.
Elcon Associates, Inc.
Weddle Surveying Inc.
Civil West Engineering Services Inc.
Pennsylvania (4)Sellers
Midlantic Engineering
VITETTA
MCF Architecture
All4 LLC
Rhode IslandSellers
No Transactions
South Carolina (4)Sellers
Live Oak Consultants
Craig Gaulden Davis (CGD)
Compass 5 Architects
Professional Engineering Associates
South DakotaSellers
No Transactions
Tennessee (2)Sellers
Entech Engineering Inc.
MBI Companies, Inc.
Texas (7)Sellers
Cavern Solutions Inc.
TransCend4
ATR Engineering
UP Engineering, LLC
Murfee Engineering Company
BSC Forensic Services, LLC
Electric Power Engineers, LLC
Utah (1)Sellers
Advanced Bridge Inspections, LLC
Virginia (1)Sellers
Commonwealth Architects
VermontSellers
No Transactions
Washington (2)Sellers
48 North Solutions
MBF Audiovisual & Acoustical Consulting, LLC
WisconsinSellers
No Transactions
West Virginia (1)Sellers
ZMM Architects and Engineers
WyomingSellers
No Transactions
Washington DCSellers
No Transactions

M&A Transactions by Year

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